Vesper Sparrow
Pooecetes gramineus
- KingdomAnimalia (Animals)
- PhylumChordata (Chordates)
- ClassAves (Birds)
- OrderPasseriformes (Perching Birds)
- FamilyPasserellidae (New World Sparrows)
- GenusPooecetes
- SpeciesPooecetes gramineus (Vesper Sparrow)
About the Vesper Sparrow
The vesper sparrow (Pooecetes gramineus) is a medium-sized New World sparrow. The only member of the genus Pooecetes, it is a pale sparrow with brown streaks that breeds across the grasslands of northern North America. It migrates to winter in the southern United States and Mexico.
The vesper sparrow was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with the finches in the genus Fringilla and coined the binomial name Fringilla graminea. He gave the locality as New York. Gmelin based his own description on those for the "grass finch" that had been described by John Latham in 1783 and by Thomas Pennant in 1785. The vesper sparrow is now the only species placed in the genus Pooecetes that was introduced in 1858 by the American naturalist Spencer Baird. The genus name combines the Ancient Greek ποα (poa) meaning "grass" with οικητης (oikētēs) meaning "dweller". The specific epithet gramineus is Latin meaning "grassy" or "grass-like".
Three subspecies are recognised. P. g. gramineus (Gmelin, JF, 1789) – breeds in southeast Canada to east USA P. g. confinis Baird... Wikipedia →
Closest Relatives at Saguaro National Park
Abert's Towhee
Melozone aberti
White-crowned Sparrow
Zonotrichia leucophrys
Song Sparrow
Melospiza melodia
Black-throated Sparrow
Amphispiza bilineata
Rufous-winged Sparrow
Peucaea carpalis
Lark Sparrow
Chondestes grammacus
Lincoln's Sparrow
Melospiza lincolnii
Chipping Sparrow
Spizella passerina
Canyon Towhee
Melozone fusca
Brewer's Sparrow
Spizella breweri
Green-tailed Towhee
Pipilo chlorurus
Savannah Sparrow
Passerculus sandwichensis
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
Quick answers
What are the chances of seeing a Vesper Sparrow in Saguaro National Park?
Under 5% of wildlife watchers report a Vesper Sparrow sighting in Saguaro National Park, based on 1,092 verified sightings from GBIF citizen-science data.
When is the best time to see Vesper Sparrow in Saguaro National Park?
October has the highest sighting rate for Vesper Sparrow in Saguaro National Park in our monthly data.